( | x | + | 400 | ) | − | ( | x | × | 5 100 | ) | − | 47309 100 | = | 3100 |
方程左边 = | x | + | 400 | − | ( | x | × | 5 100 | ) | − | 47309 100 |
= | x | − | 7309 100 | − | ( | x | × | 5 100 | ) |
= | x | − | 7309 100 | − | x | × | 5 100 |
= | 19 20 | x | − | 7309 100 |
19 20 | x | − | 7309 100 | = | 3100 |
19 20 | x | = | 3100 | + | 7309 100 |
19 20 | x | = | 317309 100 |
x | = | 317309 100 | ÷ | 19 20 |
= | 317309 100 | × | 20 19 |
= | 317309 5 | × | 1 19 |
x | = | 317309 95 |
x | = | 3340.094737 |